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Simulation and Analysis of Various Ventilation Systems Given in an Example in the Same School of Indoor Air Quality

Author

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  • Katarzyna Gładyszewska-Fiedoruk

    (Department of HVAC Engineering, Faculty of Civil Engineering and Environmental Engineering, Bialystok University of Technology, 15-351 Bialystok, Poland)

  • Vasyl Zhelykh

    (HGSV Department, Department of Heat and Gas Supply and Ventilation, Institute of Building and Environmental Engineering, Lviv Polytechnic National University, 79013 Lviv, Ukraine)

  • Andrii Pushchinskyi

    (HGSV Department, Department of Heat and Gas Supply and Ventilation, Institute of Building and Environmental Engineering, Lviv Polytechnic National University, 79013 Lviv, Ukraine)

Abstract

The quality of internal air is one of the factors that affect the pace and quality of knowledge acquisition. Therefore, it is important that classrooms have high quality of air. Using computer simulation, the effect of various building ventilation variants on air quality in classrooms was analyzed. Two criteria were analyzed and six variants of ventilation. The analysis was carried out using the CONTAMW program, used for multi-zone analysis of ventilation and air quality in a building. As an indicator of air quality, the concentration of carbon dioxide in school halls was adopted. The analyses show that natural ventilation is not able to provide proper air exchange. Regular airing of classrooms during breaks can reduce the carbon dioxide concentration to 2500 ppm, however, there is a significant reduction in indoor temperature (even below 10 °C). The best control over the internal environment can be obtained by using a supply–exhaust ventilation system with heat recovery. Obtaining a higher stabilization of ventilation is achieved by supplying additional energy to drive fans, however, this is only a small amount of energy compared to the cost of heat for heating the building (maximum 2%).

Suggested Citation

  • Katarzyna Gładyszewska-Fiedoruk & Vasyl Zhelykh & Andrii Pushchinskyi, 2019. "Simulation and Analysis of Various Ventilation Systems Given in an Example in the Same School of Indoor Air Quality," Energies, MDPI, vol. 12(15), pages 1-11, July.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:15:p:2845-:d:251136
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    References listed on IDEAS

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    1. Krzysztof Grygierek & Joanna Ferdyn-Grygierek, 2018. "Multi-Objective Optimization of the Envelope of Building with Natural Ventilation," Energies, MDPI, vol. 11(6), pages 1-17, May.
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    Cited by:

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    2. Pavla Mocová & Jitka Mohelníková, 2021. "Indoor Climate Performance in a Renovated School Building," Energies, MDPI, vol. 14(10), pages 1-15, May.

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